204
205 bool realloc_failures = false;
206
207 #if defined(COMPILER2) || INCLUDE_JVMCI
208 // Reallocate the non-escaping objects and restore their fields. Then
209 // relock objects if synchronization on them was eliminated.
210 #ifndef INCLUDE_JVMCI
211 if (DoEscapeAnalysis || EliminateNestedLocks) {
212 if (EliminateAllocations) {
213 #endif // INCLUDE_JVMCI
214 assert (chunk->at(0)->scope() != NULL,"expect only compiled java frames");
215 GrowableArray<ScopeValue*>* objects = chunk->at(0)->scope()->objects();
216
217 // The flag return_oop() indicates call sites which return oop
218 // in compiled code. Such sites include java method calls,
219 // runtime calls (for example, used to allocate new objects/arrays
220 // on slow code path) and any other calls generated in compiled code.
221 // It is not guaranteed that we can get such information here only
222 // by analyzing bytecode in deoptimized frames. This is why this flag
223 // is set during method compilation (see Compile::Process_OopMap_Node()).
224 // If the previous frame was popped, we don't have a result.
225 bool save_oop_result = chunk->at(0)->scope()->return_oop() && !thread->popframe_forcing_deopt_reexecution();
226 Handle return_value;
227 if (save_oop_result) {
228 // Reallocation may trigger GC. If deoptimization happened on return from
229 // call which returns oop we need to save it since it is not in oopmap.
230 oop result = deoptee.saved_oop_result(&map);
231 assert(result == NULL || result->is_oop(), "must be oop");
232 return_value = Handle(thread, result);
233 assert(Universe::heap()->is_in_or_null(result), "must be heap pointer");
234 if (TraceDeoptimization) {
235 ttyLocker ttyl;
236 tty->print_cr("SAVED OOP RESULT " INTPTR_FORMAT " in thread " INTPTR_FORMAT, p2i(result), p2i(thread));
237 }
238 }
239 if (objects != NULL) {
240 JRT_BLOCK
241 realloc_failures = realloc_objects(thread, &deoptee, objects, THREAD);
242 JRT_END
243 bool skip_internal = (cm != NULL) && !cm->is_compiled_by_jvmci();
244 reassign_fields(&deoptee, &map, objects, realloc_failures, skip_internal);
245 #ifndef PRODUCT
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204
205 bool realloc_failures = false;
206
207 #if defined(COMPILER2) || INCLUDE_JVMCI
208 // Reallocate the non-escaping objects and restore their fields. Then
209 // relock objects if synchronization on them was eliminated.
210 #ifndef INCLUDE_JVMCI
211 if (DoEscapeAnalysis || EliminateNestedLocks) {
212 if (EliminateAllocations) {
213 #endif // INCLUDE_JVMCI
214 assert (chunk->at(0)->scope() != NULL,"expect only compiled java frames");
215 GrowableArray<ScopeValue*>* objects = chunk->at(0)->scope()->objects();
216
217 // The flag return_oop() indicates call sites which return oop
218 // in compiled code. Such sites include java method calls,
219 // runtime calls (for example, used to allocate new objects/arrays
220 // on slow code path) and any other calls generated in compiled code.
221 // It is not guaranteed that we can get such information here only
222 // by analyzing bytecode in deoptimized frames. This is why this flag
223 // is set during method compilation (see Compile::Process_OopMap_Node()).
224 // If the previous frame was popped or if we are dispatching an exception,
225 // we don't have an oop result.
226 bool save_oop_result = chunk->at(0)->scope()->return_oop() && !thread->popframe_forcing_deopt_reexecution() && (exec_mode == Unpack_deopt);
227 Handle return_value;
228 if (save_oop_result) {
229 // Reallocation may trigger GC. If deoptimization happened on return from
230 // call which returns oop we need to save it since it is not in oopmap.
231 oop result = deoptee.saved_oop_result(&map);
232 assert(result == NULL || result->is_oop(), "must be oop");
233 return_value = Handle(thread, result);
234 assert(Universe::heap()->is_in_or_null(result), "must be heap pointer");
235 if (TraceDeoptimization) {
236 ttyLocker ttyl;
237 tty->print_cr("SAVED OOP RESULT " INTPTR_FORMAT " in thread " INTPTR_FORMAT, p2i(result), p2i(thread));
238 }
239 }
240 if (objects != NULL) {
241 JRT_BLOCK
242 realloc_failures = realloc_objects(thread, &deoptee, objects, THREAD);
243 JRT_END
244 bool skip_internal = (cm != NULL) && !cm->is_compiled_by_jvmci();
245 reassign_fields(&deoptee, &map, objects, realloc_failures, skip_internal);
246 #ifndef PRODUCT
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